JEFFERSON LAB SEARCH

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  • coming soon

  • Thomas Jefferson National Accelerator Facility (Jefferson Lab) provides scientists worldwide the lab’s unique particle accelerator, known as the Continuous Electron Beam Accelerator Facility (CEBAF), to probe the most basic building blocks of matter by conducting research at the frontiers of nuclear physics (NP) and related disciplines. In addition, the lab capitalizes on its unique technologies and expertise to perform advanced computing and applied research with industry and university partners, and provides programs designed to help educate the next generation in science and technology.

    Majority of computational science activities in Jefferson Lab focus on these areas : large scale and numerical intensive Lattice Quantum Chromodynamics (LQCD) calculations, modeling and simulation of accelerators and the experiment detectors, fast data acquisition and streaming data readout, high throughput computing for data analysis of experimental data, and large scale distributed data storage and management.

    Many Jefferson Lab scientists and staffs lead or actively participate the computational efforts in the above areas. Among those are computer/computational scientists and computer professionals from newly formed computational sciences and technology division (CST), physicists from physics division and the Center for Theoretical and Computational Physics, and accelerator physicists from Center for Advanced Studies of Accelerators (CASA). In addition, collaborations with universities and industrial partners further research and development in computational science.

    Jefferson Lab maintains various state of art high performance computing resources onsite. CSGF students will utilize these resources to carried out their researches in the specific areas described below:

    Accelerator Modeling

    CASA and Jefferson Lab SRF institute focus on advanced algorithms, such as fast multipole methods, for multiparticle accelerator dynamics simulations, artificial intelligence (AI) and machine learning (ML) applied to superconducting RF (SRF) accelerator operations, and integrated large and multi-scale modeling of SRF accelerator structures. These areas will be an essential part of a national strategy to optimize DOE operational facility investments, and to strengthen Jefferson Lab’s core competency of world-leading SRF advanced design and facility operations. Especially, current active simulation projects

    like electron cooling, intra-beam scattering, and coherent synchrotron radiation present diverse research domains ranging from numerical algorithms development to parallel computing.

    Streaming Data Readout

    With tremendous advancement in micro-electronics and computing technologies in the last decade, many nuclear physics and high-energy physics experiments are taking advantage of these developments by upgrading their existing triggered data acquisition to a streaming readout model (SRO) , whereby detectors are continuously read out in parallel streams of data. An SRO system, which could handle up to 100 Gb/s data throughput, provides a pipelined data analysis model to nuclear physics experiments where data are analyzed and processed in near real-time fashion. Jefferson Lab is leading a collaborative research and development effort to devise SRO systems not only for CEBAF 12GeV experiments but also for the upcoming EIC facility. SRO development offers CSGF students some exciting research areas such as network protocol design, high speed data communication, high performance data compression and distributed computing.

    Physics Data Analysis

    Analysis of data from modern particle physics experiments uses technically advanced programming and computing techniques to handle the large volumes of data. One not only needs to understand aspects of parallel programming using modern languages such as C/C++, Java, and Python, but also must incorporate knowledge of experimental techniques involving error propagation and estimation in order to properly interpret the results. Aspects of this range from writing a single algorithm used in event reconstruction, to using the collection of algorithms written by others, to managing campaigns at HPC facilities that apply these algorithms to large datasets. Detector calibrations and final physics analysis are also significant parts of the analysis chain. CSGF students could participate in any of these areas.

    Machine Learning

    Rapid developments in hardware computational power and an ever increasing set of data has lead to explosive growth in machine learning techniques, specifically deep learning techniques. These techniques threaten to change just about every facet of modern life and nuclear physics is no exception. At Jefferson Lab machine learning is being developed for every step in the physics workflow. To deliver beam to the experimental halls the accelerator relies on radio frequency (RF) cavities to accelerate the electrons. Occasionally these cavities, of which there are over 400 in operation around the accelerator, fault which disrupts the delivery of the beam to experiments. To quickly identify and diagnose cavity faults A.I. is being developed and deployed. Experiments themselves are developing and/or deploying A.I. to monitor detector performance, decide what data to keep, reconstruct detector responses, simulate the detectors, and even to analyze collected data. With the active development of machine learning tools and techniques Jefferson Lab hopes to drive nuclear physics research forward, enabling physicists to more quickly obtain and analyze high quality data.

  • JLEIC Detector and IR Study Group

    • Brindza, Paul
    • Camsonne, Alexandre
    • Diefenthaler, Markus
    • Elouadrihiri, Latifa
    • Ent, Rolf
    • Fenker, Howard
    • Furletova, Julia
    • Gaskell, Dave
    • Hyde, Charles (ODU)
    • Horn, Tanja  (CUA)
    • Hoskins, Joshua (UVA)
    • Kalicy, Greg  (CUA)
    • Keppel, Cynthia
    • Lawrence, David
    • Lin, Fanglei
    • Montgomery, Rachel (Glasgow)
    • Morozov, Vasiliy
    • Nadel-Turonski, Pawel (Stony Brook)
    • Park, Kijun (HU)
    • Ploen, Christine (ODU)
    • Rossi, Patrizia
    • Sullivan, Michael (SLAC)
    • Ungaro, Maurizio
    • Wei, Guohui
    • Weiss, Christian
    • Yoshida, Rik
    • Zhao, Zhiwen (Duke)
    • Zhang, Yuhong

    The affliations of the mebers are Jefferson Lab, unless otherwise noted.

     

  • EIC Center Advisory Board

    Name Affiliation
    Alberto Accardi Hampton University
    Peter Arnold University of Virginia
    Ian Cloet Argonne National Laboratory
    Rolf Ent Jefferson Lab
    Keith Griffioen College of William and Mary
    Charles Hyde Old Dominion University
    Mark Pitt Virginia Tech
    Christian Weiss Jefferson Lab
    Yuhong Zhang Jefferson Lab
  • How to use Superscripts, Subscripts, and Greek Characters, EIC2 Ω

    To add Super or Sub Scripts to the page body:

    1. At the bottom of the text editor, make sure Text format is set to "Full HTML"
    2. Use the Superscript and Subscript button in the editor (2nd line, 5th and 6th button)
    3. Example:   EICH2O

    To add Super or Sub Scripts to the page title:

    1. To use sub script in the title, Use <sub> tag. For Eg: "This text contains <sub>subscript</sub> text."
    2. To use super script in the title, Use <sup> tag. For Eg: "This text contains <sup>subscript</sup> text."

    To add Greek Characters to page body: 

    1. To greek characters, copy past from the URL: https://www.w3schools.com/charsets/ref_utf_greek.asp   Ex, Ω β ψ

    To add Greek Characters to page Title: 

    1. Copy and paste the characters into the title just as the above step. 

     

     

     

     

     

  • Detector Testing Capabilities in Hall B

    Detector testing capabilities in Hall B (Summer 2020)

    Space available is indicated on the drawing: https://www.jlab.org/sites/default/files/eiccenter/HallBTesting.png

    - Area A and B are non-invasive or minimally invasive which can run with CLAS12 simultaneously. Area A is for small setups. Area C is for dedicated tests which cannot run simultaneously with CLAS12.  

    - For parasitic noninvasive or minimally invasive tests.

    Small setups can be placed upstream of CLAS12 target at the location of BAND. If BAND is used they can be placed just upstream of it or just downstream. They will see particles coming from the target at large angles. In principle some small detectors can be placed in front of  FTOF where we don't have LTCC or RICH installed, at the edges of the sector.

    - Larger setups can be installed on the platform between the forward carriage and downstream alcove with some modifications of the downstream beam line. In this case they will see what is going at small angles and/or additional scattering chamber with thin target could be installed there.

    - For dedicated test in addition to this location we can use space between the tagger and the solenoid.

    Space downstream of the CLAS12 detectors. For example, behind the calorimeters, we have enough space to test any type of muon detectors (small ones can be mounted directly on the forward carriage, large ones on some platform downstream of the forward carriage). Another good space we have is between R3 drift chambers and FTOF for sectors that do not have LTCC or RICH. In both places, we know particle type and momentum before the detector. Nice place for a tracking detector test.

    Some caveat:

    - In location A the composition of particles is not really known. This place can be used if they want to test detector operation in magnetic field. This place is for small detectors only.

    - In  location B the secondary target (foil or wire) can be installed. This will allow to estimate flux of particles. This place can be used for instance to test tracking detectors.

    Space between CTOF/CND PMTs and BAND. It is a high magnetic field area, and close to sensitive SVT electronics. Not so simple to do tests of a detector that may require frequent access or may generate electronic noise. 

    Engineering support: Bob Miller can provide engineering support and design support stands for these experiments.  We do have a couple of stands left over from CLAS that may be useful.  

    DAQ: Hall-B staff could provide  full support for daq/trigger. Depending on actual setup we may need to buy some hardware

    HV power supplies to operate PMT-based detectors: we can provide some if number of channels is not too large

     

     

  • HUGS Summer School

    Hampton University Graduate Studies Program (HUGS) in association with EIC2 will organize its 2018 program around the physics of the Electron-Ion Collider.  

     

    HUGS 2018
    Jefferson Lab, Newport News, Virginia
    May 29 - June 15, 2018

    With support from the United States Department of Energy (DOE) and Jefferson Science Associates (JSA), lectures at the 33rd Annual Hampton University Graduate Studies (HUGS) Program at Jefferson Lab are scheduled to run from Tuesday, May 29 to Friday, June 15, 2018. Students will arrive on Monday, May 28 and depart on Saturday, June 16.

    The HUGS Program at Jefferson Lab is a summer school designed for experimental and theoretical nuclear and particle physics graduate students who have finished their coursework and have at least one year of research experience in these fields. Students who are well into a research project are also encouraged to apply. The program is simultaneously intensive, friendly, and casual. All lecturers are internationally renowned and leaders in their fields. The students will be housed on site at Jefferson Lab, and there will be many opportunities to interact with Jefferson Lab staff, as well as the lecturers, other graduate students and visitors. Acceptance into the program is competitive, and a limited number of scholarships is available. Deadline for scholarship application is March 16, 2018.

     

    Speakers and Topics:

    The 2018 school will focus on experimental and theoretical topics of high current interest in strong interaction physics. In particular, students will receive excellent insight into the physics to be studied at Jefferson Lab and at the Electron-Ion Collider in the upcoming years, as well as related topics of interest in nuclear and particle physics. Speakers and topics for this year include:

    • Instructors and topics to come -- for now, please look at the HUGS archives

    In addition to the main lectures, the school will offer topical seminars by Jefferson Lab researchers, and an opportunity for the students to present their research in a short seminar.

     

    Student Support:::

    Thanks to a grant from the United States Department of Energy, we will be able to offer a limited number of standard HUGS fellowships that will cover lodging at the SURA residence facility, where kitchen facilities are available, and a contribution towards meal expenses. Students interested in this opportunity should note so in the registration page, and address their financial need in the appropriate field.

    In addition to these, a JSA/HUGS fellowship for Graduate Students from Developing Countries supported by the JSA Initiatives Fund Program was separately announced and circulated, and applications are now closed. Under this fellowship, that supplements the standard one, we will be able to support one or two graduate students from a developing country, fully covering travel expenses (including international airfare), room, board and from 1 to 3 additional week at Jefferson Lab to meet with laboratory researchers and users, and to initiate or strengthen a research collaboration.

     

    Physics Careers Workshop:

    As part of the HUGS school, but open to all interested graduate students and post-docs from the Jefferson Lab community, we will also organize a mini-workshop on Physics Careers.

    The organization of this mini-workshop is in progress, and more detail will be made available later. Information on previous editions can be found in the HUGS archives 

     

    Application:

    To apply to HUGS 2018, please follow the link on the sidebar, and arrange for one letter of recommendation (ideally from your Ph.D. advisor) to be separately sent to the address below. Submission received before the deadline will automatically place the student in the standard fellowship competition.

    The deadline for application submission is March 16, 2018. Applications will still be accepted after this date but will not be included in the fellowship competition. Students will be notified by March 28, 2018 of acceptance.

    Please forward all queries to

    HUGS 2018
    Jefferson Lab
    Attn: Mary Fox, Suite 1, MS-12H2
    12000 Jefferson Avenue. Newport News, VA 23606
    Phone: (757) 269-6263 Fax: (757) 269-7002
    e-mail: hugs@jlab.org

     

    https://www.jlab.org/intralab/calendar/hugs/index.html 

  • For Physicists

    Jefferson Lab EIC (JLEIC) Design Parameter (Apr. 2019 update: 100 GeV CM)

    EIC Detector Simulations

    Laboratory Directed R&D Pages

    JLEIC Public Documents

     

    EIC Ad-hoc Meeting Series

    JLEIC email lists

     

    JLEIC Detector and IR Study Group